#include "StdAfx.h"
#include "CriticalSection.h"

///////////////////////////////////////////////////////////////////////////////
// CriticalSection
///////////////////////////////////////////////////////////////////////////////

CriticalSection::CriticalSection()
{
   ::InitializeCriticalSection(&m_crit);
}
      
CriticalSection::~CriticalSection()
{
   ::DeleteCriticalSection(&m_crit);
}

#if(_WIN32_WINNT >= 0x0400)
bool CriticalSection::TryEnter()
{
   return TRUE == (::TryEnterCriticalSection(&m_crit));
}
#endif

void CriticalSection::Enter()
{
   ::EnterCriticalSection(&m_crit);
}

void CriticalSection::Leave()
{
   ::LeaveCriticalSection(&m_crit);
}

///////////////////////////////////////////////////////////////////////////////
// CriticalSection::Owner
///////////////////////////////////////////////////////////////////////////////

CriticalSection::Owner::Owner(
   CriticalSection &crit)
   : m_crit(crit)
{
   m_crit.Enter();
}

CriticalSection::Owner::~Owner()
{
   m_crit.Leave();
}